Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
35results about How to "Estimated realization" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Typhoon disaster risk estimate method
InactiveCN103177301AEstimated realizationQuick releaseForecastingICT adaptationRisk levelEngineering
The invention relates to a typhoon disaster risk estimate method. The method includes performing statistics and analysis on loss data caused by a typhoon disaster in a specified monitored area, selecting disaster-inducing risk, disaster-formative environment sensitivity, disaster-affected body vulnerability and disaster preventing and reducing capacity to build a typhoon disaster risk estimate index system, building a typhoon disaster risk estimate model with the theory of fuzzy transformation, taking typhoon estimate results as start conditions and input conditions of the estimate model, and judging whether the estimated area is induced a typhoon disaster or not in a future period of time and determining a disaster-inducing risk level through calculating and analyzing of the estimate model. Accordingly, early-warning capability of meteorological disasters is improved by the typhoon disaster risk estimate method.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
Method for remote sensing quantitative estimation on woodland site quality
InactiveCN104020274AHigh precisionEstimated realizationEarth material testingSpecial data processing applicationsSoil scienceSoil humus
The invention provides a method for remote sensing quantitative estimation on the woodland site quality. A soil organic matter, a soil humus layer, the thickness of soil, a gradient, the slope aspect and the altitude are selected as leading factors by analyzing a grading basis and a grading criterion of four grades including grade I, grade II, grade III and grade IV of the traditional site quality, estimation and inversion of all thematic information are realized on the basis of a 3S technique by utilizing relevant ground information of regional ground actual measurement and investigation, a score table of the woodland site quality is established by adopting a quantification theory, and the verification precision is 81%. The method has the advantages of strong reality, time saving and labor saving and is important in reflecting the change of the regional woodland site quality by utilizing the advantages of remote sensing time; in addition, the precision of all estimation results of the method is increased, and an important basis is provided for optimization management of woodland.
Owner:FUJIAN AGRI & FORESTRY UNIV
Kalman filtering-based method for estimating attitude angle of rescue wrecker
InactiveCN104034332AEstimated realizationReduce data storageAngle measurementNavigation by speed/acceleration measurementsEngineeringRolling angle
The invention discloses a Kalman filtering-based method for estimating an attitude angle of a rescue wrecker. A kinetic model of the rescue wrecker is built, a computing formula of a roll angle and a pitch angle is simplified according to the working characteristics, and the estimated values of the roll angle and the pitch angle of the rescue wrecker are obtained by use of a Kalman filtering algorithm. According to the method, few sensors are used, the relatively large roll angle and the relatively large pitch angle can be estimated under a complex rescue environment, and the method has the remarkable advantages of high precision, low cost, good real-time performance, wide application range and the like, and can be used for posture monitoring and dangerous posture prewarning of the rescue wrecker.
Owner:SOUTHEAST UNIV
Light source estimation method and device based on multiple spheres and intelligent electronic device
InactiveCN106840389AEstimated realizationSimplify complexityImage enhancementImage analysisLight spotEstimation methods
The invention discloses a light source estimation method and device based on multiple spheres and an electronic device. The light source estimation method comprises the steps that light spots on the surfaces of specular reflection spheres are detected from images, and coordinates of central points of the light spots in image planes are obtained; according to the coordinates of the central points of the light spots in the image planes and parameters of a vidicon, back projection is conducted on the central points of the light spots to obtain a ray; according to the raw direction and the normal directions of the central points of the light spots, the direction of a self-luminous light source is calculated; brightness detection is conducted on the Lambert spheres in the images to obtain the brightness of spherical points of visible parts of the Lambert spheres; a lighting equation is established for the spherical points of the visible parts of the Lambert spheres respectively, the lighting equations form an overdetermined equation set, and the intensity of ambient light and the intensity of the self-luminous light source are solved. The light source estimation method is a new method.
Owner:GEER TECH CO LTD
Advertisement putting effect estimation method and device, server and storage medium
The invention provides an advertisement putting effect estimation method and device, a server and a storage medium, and the method comprises the steps: receiving a putting effect estimation request which indicates a target industry to which a target advertisement to be subjected to putting effect estimation belongs, a target putting channel, and target time for requesting for putting effect estimation; determining the effective duration of putting the advertisement of the target industry in the unit time of the target putting channel in the target time, and calculating the total exposure number of putting the advertisement of the target industry in the unit time of the target putting channel in the target time based on the effective duration and a preset advertisement loading rate; And according to the total exposure number, calculating the exposure number of the target advertisement in the target delivery channel per unit time in the target time, so as to achieve the estimation of theadvertisement delivery effect on the basis of not using the actual advertisement delivery effect.
Owner:GUANGZHOU YOUMI INFORMATION TECH
Aquatic fish feeding amount pre-estimation method based on fuzzy algorithm
InactiveCN108375906APrecise Decision ComputingEstimated realizationAdaptive controlFish weightEnvironment water
The invention provides an aquatic fish feeding amount pre-estimation method based on a fuzzy algorithm. The method comprises a step of performing pre-estimation on the feeding amount of a target fishshoal based on the average weight and the growth environment water temperature of a target fish shoal by means of a feeding amount pre-estimation model; wherein the feeding amount pre-estimation modelis established through performing fuzzy processing on the fish weight which corresponds with the target fish shoal and the growth environment water temperature of the target fish shoal. The aquatic fish feeding amount pre-estimation method has advantages of effectively improving data measurement accuracy, realizing more accurate fish feeding amount decision calculation, and effectively preventingproblems of fish feed wastage, water quality reduction and yield reduction.
Owner:BEIJING RES CENT FOR INFORMATION TECH & AGRI
System and apparatus for road traffic congestion degree estimation
A road traffic congestion degree estimation system includes smart plate readers that detect vehicles driven on a general road externally leading to a resort. The numbers of local vehicles and strange vehicles that currently exist in the resort are calculated, based on the number of vehicles approaching the resort, the number of vehicles receding from the resort, and information of smart plates of the detected vehicles. Furthermore, a prospective degree of traffic congestion on an expressway, which introduces the strange vehicles receding from the resort via the general road into areas where the strange vehicles are based, is estimated based on the above calculated numbers of local vehicles and strange vehicles. In this estimation, the number of strange vehicles contributes more greatly to an increase in the degree of traffic congestion than the number of local vehicles does.
Owner:DENSO CORP
Method, device and equipment for estimating soil respiration and storage medium
InactiveCN110174504AEstimated realizationExpand the range of estimatesEarth material testingDesign optimisation/simulationSensing dataResponse model
The invention provides a method, device and equipment for estimating soil respiration and a storage medium. The method comprises the following steps: acquiring flux data through a flux observation station, wherein the flux data comprises soil respiration data; acquiring remote sensing data of a geographic unit where the flux observation station is located; establishing a soil respiration dynamic response model according to the flux data and the remote sensing data; and estimating the soil respiration according to the soil respiration dynamic response model. According to the invention, the estimation of the soil respiration is realized, and the estimation range of the soil respiration is enlarged.
Owner:BEIJING NORMAL UNIVERSITY
Third-level type motor rotor position estimation method for salient pole characteristic change
ActiveCN105871276AEstimated realizationGenerator circuit arrangements controlSynchronous generator controlEstimation methodsElectric machine
The invention relates to a third-level type motor rotor position estimation method for salient pole characteristic change. Targeted to characteristics of a third-level type motor multi-level combination structure, a new signal transfer and detection channel is established between a main generator and an exciter and is shown as the graph 2; high-frequency signals are injected on the stator side of the main generator through the signal transfer channel, the signals sequentially pass through a main generator air-gap magnetic field, a rotating rectifier and an exciter air-gap magnetic field, then high-frequency response signals are extracted out of an exciter stator winding, and estimation of the position of a motor rotor is achieved. According to the main generator injection-exciter detection signal transfer and detection thought, the characteristic that mutual inductance between the main generator stator winding and the exciter winding changes along with the position of the rotor is fully utilized, and the position of the main generator exciter winding, namely the position of the rotor magnetic pole is estimated. The estimation method does not depend on salient polarity of a motor, and the method is still applicable when the main generator salient polarity changes in the starting process.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Aboveground vegetation ecological water estimation method based on airborne LiDAR (Light Detection And Ranging) and Sentinel-2A data
ActiveCN110378926AEliminate the effects ofKeep more feature informationImage enhancementImage analysisEnvironmental resource managementAbove ground
The invention relates to an aboveground vegetation ecological water estimation method based on airborne LiDAR and Sentinel-2A data, solves the hydrological effect problem of vegetation from a macroscopic level, undoubtedly is beneficial exploration and attempt, and comprises the following steps: step S10, selecting a research area, and collecting field sample plot survey data; s20, 18 characteristic indexes are extracted from Sentinel-2A remote sensing data, and a vegetation canopy ecological water model is constructed; s30, according to the field survey data, a nonlinear model is adopted to construct a coniferous tree and broad-leaved tree breast height-tree height conversion model; step S40, acquiring single-tree vertical structure information through airborne LiDAR data; s50, constructing an airborne LiDAR vegetation stem and branch ecological water inversion model; and step S60, combining the Sentinel-2A vegetation canopy ecological water with airborne LiDAR vegetation stem and branch ecological water to obtain an above-ground vegetation ecological water reserve result. Compared with a single passive remote sensing source, the above-ground vegetation ecological water reserve result has the advantage that the accuracy of the above-ground vegetation canopy, stem and branch ecological water estimation technology is greatly improved.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
Magnetic suspension motor fault-tolerant control system and method based on self-sensing technology
PendingCN113162517AEstimated realizationAvoid major security incidentsElectric motor controlSingle motor speed/torque controlControl engineeringPermanent magnet synchronous motor
The invention provides a magnetic suspension motor fault-tolerant control system and method based on a self-sensing technology, and relates to the technical field of magnetic suspension motor control. The system comprises a magnetic suspension permanent magnet synchronous motor, a sensor module, an upper computer communication module, a power amplifier module and a controller module. When a displacement sensor in the sensor module has a fault, the controller module is integrated with the fault-tolerant control method for the displacement sensor of the magnetic levitation motor with a self-sensing technology, and the method can realize the estimation of displacement through calculation of collected current information and replace the fault displacement sensor to continuously collect displacement information. And major safety accidents caused by faults of the displacement sensor are avoided.
Owner:NORTHEASTERN UNIV
SOC estimation method and system of lithium battery system
PendingCN112379291AAccurate estimateEstimated realizationElectrical testingVehicular energy storageEngineeringComputational physics
The invention provides an SOC estimation method and system for a lithium battery system, and the method comprises the steps: dividing a standard charging and discharging curve into a plurality of standard curve sections according to the time point voltage difference between every two time points at a preset time interval of each single battery, obtaining the charge-discharge capacity and the charge-discharge calibration formula of each standard curve partition; combining each monomer voltage curve with a standard curve partition and a charging and discharging calibration formula correspondingto the standard curve partition to calculate a monomer SOH estimated value; obtaining a system SOH estimated value of the lithium battery system according to the single SOH estimated value of each single battery; performing integral processing on the charging and discharging current and the charging and discharging time of the lithium battery system to obtain a charging and discharging capacity estimated value; acquiring a system SOC estimated value according to the system SOH estimated value and the charging and discharging capacity estimated value; and performing calibration operation on theSOC estimated value of the system in combination with the corresponding system working condition. The method has the beneficial effect that the SOC is accurately estimated by accurately estimating the SOH.
Owner:ZHEJIANG NARADA POWER SOURCE CO LTD +1
CFO (Carrier Frequency Offset) evaluation method based on multiple noises
ActiveCN106101042AEstimated realizationMulti-frequency code systemsSignal-to-noise ratio (imaging)Carrier frequency offset
This invention discloses a CFO evaluation method based on multiple noises. The method comprises the steps of triggering multiple noises, acquiring a composite signal, evaluating a deflection factor and evaluating a CFO. The CFO evaluation method based on multiple noises can generate different received signals by utilizing multiple noises. The received signals can be composited by utilizing the transpose reversible property of a unitary matrix; the frequency deflection of transmission signals and received signals can be acquired based on the correlation of channels; and on the premise of a certain signal-to-noise ratio, the method has smaller minimum mean square error.
Owner:东开数科(山东)产业园有限公司
Wave parameter estimation method and device
PendingCN112085779AEstimated realizationAccurate estimateImage enhancementImage analysisAlgorithmData mining
The invention discloses a wave parameter estimation method and device. The wave parameter estimation method comprises the following steps: acquiring wave video data; processing the wave video data byusing an improved three-dimensional convolutional neural network to construct a wave parameter estimation model; and obtaining a wave parameter estimation value through the wave parameter estimation model. According to the method, the wave parameter estimation model is constructed by using the wave video data and the improved three-dimensional convolutional neural network, so that the estimation of wave parameters is realized. According to the improved three-dimensional convolutional neural network, deep separable convolution is adopted, a lightweight neural network can be constructed, and thecalculation expenditure and time expenditure of a wave parameter estimation model are greatly reduced.
Owner:SHANGHAI MARITIME UNIVERSITY
Event estimation method and device and electronic equipment
PendingCN111199440AEstimated realizationAccurate identificationBuying/selling/leasing transactionsCurrent timeEngineering
The invention provides an event estimation method and device and electronic equipment, and the method comprises the steps of obtaining first order data in a target region in a specified time period; comparing the first order data with historical data in the target area, and judging whether the first order data is separated from a rule of the historical data in the target area or not; and obtainingan estimation result of whether a set event occurs in the target area or not according to a judgment result. According to the embodiment of the invention, the method achieves the comparison and analysis of the order condition at the current time and the order condition in the historical data, and achieves the estimation of the possible experiencing event of the target region.
Owner:BEIJING DIDI INFINITY TECH & DEV
Celestial sphere observation area estimation method and celestial sphere observation system
ActiveCN113916197AAchieve the estimated purposeEstimated realizationSurveying instrumentsDesign optimisation/simulationSkyCelestial sphere
The invention relates to a celestial sphere observation area estimation method and a celestial sphere observation system. The method comprises the steps of: firstly, subjecting the whole celestial sphere to equal-area multiple times of division through an HEALPix method to obtain a plurality of minimum spherical quadrangles with the same area, and taking the minimum spherical quadrangles as bottom layer nodes; and secondly, counting the number of the bottom layer nodes and the sky patrol observation information in each bottom layer node in a spherical area of the celestial sphere needing to be estimated so as to estimate the observation area of the celestial sphere. The HEALPix method is adopted, the whole celestial sphere is divided into any nodes with the same area, the area of each observation area is expressed by the number of the nodes, iterative calculation is carried out on all observations, finally observation information is given to each HEALPix bottom layer node, and the observation area of the whole celestial sphere can be estimated according to the area expressed by the bottom layer nodes and the observation information. Therefore, the observation area of the spherical surface of any shape of the celestial sphere can be estimated.
Owner:NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
Method and device for estimating window areas
PendingCN112509028AEstimated realizationImprove work efficiencyImage enhancementImage analysisComputer graphics (images)Engineering
The invention provides a method and a device for estimating window areas. The method comprises the following steps: acquiring a building image acquired by an image acquisition device; wherein the building image comprises a window with an area to be estimated and a reference object with a known size, and the reference object is attached to the wall surface of the building; processing the building image, and determining a bounding box of the window in the building image and a bounding box of the reference object in the building image; and determining the estimated area of the window according tothe size of the reference object, the window and the boundary frame of the reference object. Compared with a traditional method for measuring the area of the window on site, the method provided by the invention has the advantages that the area of the window is estimated quickly, simply and conveniently in a non-contact mode, the working efficiency is improved, and the operation difficulty and theoperation cost are reduced.
Owner:CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
Vision-based modular platform relative pose estimation system
PendingCN113989371AImproving Relative Pose Estimation CapabilitiesGood real-time estimationImage analysisComplex mathematical operationsMaster controllerComputer vision
The invention discloses a vision-based modular platform relative pose estimation system, which comprises a master controller, an upper computer, a controller, a driver, an encoder and a camera; the front face and the right side face of each mobile robot are each provided with a camera, and the rear face and the left side face of each mobile robot are each provided with a double-two-dimensional-code target used for pose detection. Encoders are arranged on a left wheel and a right wheel of each mobile robot, each mobile robot corresponds to one set of upper computer, controller and driver, the controller is connected with the upper computer, the driver is connected with the controller, the camera is connected with the upper computer, and each upper computer is connected with the master controller. According to the system, the estimation capability of the relative pose between modular robot platforms is improved, the system is simple and low in cost, the real-time performance of pose estimation is good, the accuracy of pose estimation is ensured, the estimation of the relative pose between robots with partial incomplete or inaccurate information is realized, and the problem of target loss caused by visual detection is solved to a certain extent.
Owner:SHANDONG UNIV
Rotor Position Estimation Method for Three-stage Motor Based on Variation of Salient Pole Characteristics
ActiveCN105871276BEstimated realizationGenerator circuit arrangements controlSynchronous generator controlEstimation methodsThree stage
The invention relates to a third-level type motor rotor position estimation method for salient pole characteristic change. Targeted to characteristics of a third-level type motor multi-level combination structure, a new signal transfer and detection channel is established between a main generator and an exciter and is shown as the graph 2; high-frequency signals are injected on the stator side of the main generator through the signal transfer channel, the signals sequentially pass through a main generator air-gap magnetic field, a rotating rectifier and an exciter air-gap magnetic field, then high-frequency response signals are extracted out of an exciter stator winding, and estimation of the position of a motor rotor is achieved. According to the main generator injection-exciter detection signal transfer and detection thought, the characteristic that mutual inductance between the main generator stator winding and the exciter winding changes along with the position of the rotor is fully utilized, and the position of the main generator exciter winding, namely the position of the rotor magnetic pole is estimated. The estimation method does not depend on salient polarity of a motor, and the method is still applicable when the main generator salient polarity changes in the starting process.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Fuel flow estimation method for oil-way of air scoop
ActiveCN110748422AEstimated realizationImprove estimation accuracyGas turbine plantsTurbine/propulsion fuel controlDriving currentControl theory
The invention discloses a fuel flow estimation system for an oil-way of an air scoop. The system comprises a controller (1), a servo valve (2), a fore-valve oil pressure sensor (3), a post-valve oil pressure sensor (4) and a fuel flow resolving module (5). The fore-valve oil pressure sensor (3) and the post-valve oil pressure sensor (4) are separately arranged at an inlet and an outlet of the servo valve (2); the fuel flow resolving module (5) is combined with a driving current of the servo valve (2) and pressure signals of pressure sensors in front of and behind the servo valve (2) to estimate the fuel flow of the oil-way of the air scoop, an estimation result is transferred to the controller (1), and the controller (1) adjusts the driving current of the servo valve (2) in real time. Theestimation system estimates the fuel flow of the oil-way of the air scoop by means of the collected oil pressure difference between the inlet and outlet of the servo valve and the driving current of the servo valve and improves the estimation precision of the fuel flow of the oil-way of the air scoop, so that influence of a large oil pressure range change in front of the servo valve to the systemis solved, and the system is wide in application range and high in calculating precision.
Owner:BEIJING POWER MACHINERY INST
Soh estimation method and storage medium of lithium iron phosphate battery based on eigenvalue method
ActiveCN111999659BEstimated realizationRealize offline computingElectrical testingVehicular energy storageLithium iron phosphateBattery charge
The invention provides a method for estimating the SOH of a lithium iron phosphate battery and a storage medium based on an eigenvalue method, and relates to the technical field of battery management systems for new energy vehicles, including analyzing the charging state of the battery through the preset voltage setting value and according to the voltage setting value. The voltage and capacity data in the process are used to determine the set value of the voltage difference, and after the set value of the voltage difference is determined, the charging amount of the battery is counted every 100 seconds, which is used to calculate the cumulative charging capacity in the interval ;Cycle charging test is carried out on the life of lithium iron phosphate battery, and the functional relationship between the accumulated charging capacity and the total battery capacity in the whole life cycle of lithium iron phosphate battery is counted, and the estimation of SOH of lithium iron phosphate battery is realized based on the functional relationship . It solves the problem that the traditional method cannot estimate the SOH of lithium iron phosphate battery online, and also overcomes the technical problem that the trigger condition of the estimation method is difficult to achieve in practice due to the long plateau period of lithium iron phosphate battery.
Owner:深蓝汽车科技有限公司
Complex signal phase-based bit reversal-prevention rapid capture method
ActiveCN109239744AAccurate estimateEstimation of Signal Code Phase Fast Estimation Fast and AccurateSatellite radio beaconingFrequency conversionComputer science
The invention mainly discloses a complex signal phase-based bit reversal-prevention rapid capture method. According to the method, down frequency conversion is carried out on a received signal and blocking is carried out on local related signals and the received signal to obtain a matrix; code phase search processing is carried out on the obtained matrix to obtain a to-be-detected variable; coherent integral detection is carried out to obtain a coherent integral value of the code phase search processing; code phase processing is carried out on the received signal to obtain a to-be-detected variable of the code phase processing; position reversal is carried out on obtained estimated bit data; coherent integral detection is carried out again to finally obtain a to-be-solved parameter code phase; and finally an estimated capture parameter ode phase and a frequency are obtained, so that the rapid capture of GNSS signals is realized. The method is capable of rapidly and accurately estimating code phases, so as to realize the estimation of capture parameters under the condition of bit symbol reversal.
Owner:HANGZHOU DIANZI UNIV
Wrestling detection method based on human body posture and orientation estimation
PendingCN111914619AHigh toleranceComfortable fall detection and early warningCharacter and pattern recognitionEngineeringIntegrated devices
The invention discloses a wrestling detection method based on human body posture and orientation estimation. The method comprises the following steps that a mobile phone terminal receives human body motion data measured by sensor integrated equipment and carries out input correction; human body data is fused and interference terms are removed through Kalman filtering; a human body posture angle isestimated according to the human body motion data; and wrestling detection and judgment are performed according to the human body motion data and the human body posture angle. According to the invention, the detection method is integrated on the mobile phone terminal, a user only needs to wear a piece of a portable sensor integrated device, and the mobile phone terminal downloads a matched client, so that robust wrestling detection can be realized. When a user tumbles, the mobile phone terminal can give an alarm in time. The user can wear the sensor integrated device on any part such as a trunk or legs, and when the sensor integrated device is worn on the waist and the legs, the accuracy of wrestling detection reaches 100%.
Owner:SOUTH CHINA UNIV OF TECH
Estimation method for single-particle error rate section of radiation-proof complex integrated circuit
ActiveCN107194090AMeet the requirements of third-party assessment agenciesReasonable estimateSpecial data processing applicationsError ratioIntegrated circuit
The invention relates to an estimation method for a single-particle error rate section of a radiation-proof complex integrated circuit. According to the technical scheme, a ground full-function test program is compiled according to system functions of the circuit; the circuit is divided into multiple modules according to the principles that duty factors are equal, radiation effect types are the same, and a physical layout can be divided; the duty factors of all the modules in a ground accelerated test are solved; a single-particle error rate section estimation model is established according to the correlation between the single-particle error rate section of the whole circuit, single-particle intrinsic error sections of all the modules and the duty factors; the radiation-proof performance of the radiation-proof complex integrated circuit under a space application program can be estimated through the model; and the worst single-particle error rate section of the ground is estimated according to the maximum duty factor of each module. Therefore, pre-estimation of the single-particle error rate section of the radiation-proof complex integrated circuit is realized, and a reference basis is provided for spatial engineering application model selection of the radiation-proof complex integrated circuit.
Owner:XIDIAN UNIV
Single event error rate cross-section prediction method for radiation-resistant complex integrated circuits
ActiveCN107194090BReasonable estimateReduce occupancyDesign optimisation/simulationSpecial data processing applicationsModel selectionHemt circuits
The invention relates to an estimation method for a single-particle error rate section of a radiation-proof complex integrated circuit. According to the technical scheme, a ground full-function test program is compiled according to system functions of the circuit; the circuit is divided into multiple modules according to the principles that duty factors are equal, radiation effect types are the same, and a physical layout can be divided; the duty factors of all the modules in a ground accelerated test are solved; a single-particle error rate section estimation model is established according to the correlation between the single-particle error rate section of the whole circuit, single-particle intrinsic error sections of all the modules and the duty factors; the radiation-proof performance of the radiation-proof complex integrated circuit under a space application program can be estimated through the model; and the worst single-particle error rate section of the ground is estimated according to the maximum duty factor of each module. Therefore, pre-estimation of the single-particle error rate section of the radiation-proof complex integrated circuit is realized, and a reference basis is provided for spatial engineering application model selection of the radiation-proof complex integrated circuit.
Owner:XIDIAN UNIV
A Method for Remote Sensing Quantitative Estimation of Forest Site Quality
InactiveCN104020274BHigh precisionEstimated realizationEarth material testingSpecial data processing applicationsSoil scienceSoil humus
Owner:FUJIAN AGRI & FORESTRY UNIV
System and apparatus for road traffic congestion degree estimation
A system for estimating the degree of road traffic congestion including a smart license plate reader that detects vehicles traveling on ordinary roads leading from the outside to tourist attractions. Based on the number of vehicles approaching the tourist attraction, the number of vehicles leaving the tourist attraction and the smart license plate information of the detected vehicles, the number of local vehicles and foreign vehicles currently existing in the tourist attraction is calculated. In addition, based on the above-calculated numbers of local vehicles and foreign vehicles, the expected traffic congestion on the expressway that brings foreign vehicles departing from tourist attractions into the area where the foreign vehicles are based via ordinary roads is estimated. In this estimate, the number of foreign vehicles plays a larger role in the increase in traffic congestion than the number of local vehicles.
Owner:DENSO CORP
Visual detection method for coal level of coal bunker
The invention discloses a coal bunker coal level visual detection method which comprises the following steps: acquiring a first thermal imaging image of a first position in a coal bunker based on an infrared thermal imager; when thermal imaging shooting is carried out, imaging is carried out at a fixed focal length; estimating a virtual focus position corresponding to the first thermal imaging image based on the first thermal imaging image imaged at a fixed focal length and based on internal parameters of an infrared thermal imager; and estimating the coal level of the coal bunker based on the fixed focal length, the first position and the virtual focus position. According to the coal bunker coal level visual detection method provided by the invention, the coal level image in the coal bunker with insufficient ambient light can be obtained in an infrared shooting mode, and then the infrared imaging image is shot by the fixed-focus camera, so that the estimated value of the virtual focus of the actual image can be obtained based on a photogrammetry algorithm. And estimating the coal level information of the current coal bunker according to the preset relationship between the fixed focal length and the coal level of the coal bunker and the virtual focus position information.
Owner:BEIJING HUANENG XINRUI CONTROL TECH
A method for estimating the fuel flow of the wind bucket oil circuit
ActiveCN110748422BEstimated realizationImprove estimation accuracyGas turbine plantsTurbine/propulsion fuel controlDriving currentPressure sensor
Owner:BEIJING POWER MACHINERY INST
A CFO Estimation Method Based on Multiple Noises
ActiveCN106101042BEstimated realizationMulti-frequency code systemsSignal-to-noise ratio (imaging)Estimation methods
This invention discloses a CFO evaluation method based on multiple noises. The method comprises the steps of triggering multiple noises, acquiring a composite signal, evaluating a deflection factor and evaluating a CFO. The CFO evaluation method based on multiple noises can generate different received signals by utilizing multiple noises. The received signals can be composited by utilizing the transpose reversible property of a unitary matrix; the frequency deflection of transmission signals and received signals can be acquired based on the correlation of channels; and on the premise of a certain signal-to-noise ratio, the method has smaller minimum mean square error.
Owner:东开数科(山东)产业园有限公司
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com